I have tried very hard to improve my English. But by no means __________ with my progress.
He said he would work it out himself, ________ ask nobody for help.
They were swimming in the river ______ suddenly the storm started.
________ a difficult situation, so you should send a message to him and give some advice to him .
It was dark______ we arrived at the little town .
—Oh, I failed again—Don’t lose heart. One more time, ________ you will succeed.